• The Journal of the Convergence on Culture Technology
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• v.5 no.4
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• pp.1-9
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• 2019

The purpose of this study was to examine the mediating effect of community child center service experience on the relationship between peer attachment and school adjustment. For the analysis, data from the 2nd Panel of Community Child Center(2017) were used. Frequency analysis, reliability analysis, correlation analysis, and multiple regression analysis were conducted using IBM SPSS Statistics 20 program. As a result, peer attachment(peer trust) has a positive effect on their center experience and school adjustment, and the center experience has a partial mediating effect on the relationship between peer attachment and school adjustment. The relationship with a center teacher and the center service evaluation of the children who use community child center are important factors that affect their school adjustment. Therefore measures should be taken to improve the quality of the community child center programs and its teachers.

• Journal of Families and Better Life
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• v.9 no.1 s.17
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• pp.65-80
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• 1991

The purpose of this study is to search a tendency of adjustment of mid-life women and to identify the variables that influence the adjustment of mid-life women. For this purpose, attitudes toward the menopause(ATM) scale, Korean Sex-Role Inventory(KSRI) scale, General Well-Being(GWB) scale, and Center for Epidemiological Studies Depression(CESD) scale were developed. The sample was selected from the 331 women living in Seoul, whose age was from 40-59, and whose last child was older than 13 years of age. The main results were as follows : 1) The level of well-being that the mid-life women was average and the level of depression was above average. 2) the attitudes of the mid-life women about menopause were a litte negative in both physical and psychological sides. 3) As for the related variables, frequency of leasure activies was significant to the well-being level of the mid-life women. And age, Socio-Economic Status(SES), status of last child have a significant influence on the depression level of them. 4) The attitudes toward menopause had insignificant influence on their adjustment and menopause status was irrelevant to it. 5) In the case that the mid-life women have high sex-role identity, that they have androgyny or masculinity, they appeared well adjusted. 6) In the result of mulitiple regressing analysis, the influence that the variables had on the mid-life women's well-being will be presented as fallows in order of importance: Sex-role identity, frequency of leasure activies and age. Above 3 variables explain 24% of adjustment of mid-life.

• Korean Journal of Human Ecology
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• v.20 no.1
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• pp.1-19
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• 2011

The purpose of this study was to investigate the interactions of ego-resilience and social supports in the school adjustment in children. The subjects of this study were 479 children drawn from the fourth and sixth grades of three elementary schools in Cheongju city. The pilot study was done to examine the applicability of survey instruments. Data was analyzed by frequency, percentage, Cronbach's t-test, ANOVA with Tukey post-hoc test, correlation, and hierarchial analysis using the SPSSWIN program. The results of this research were as follows: First, the results showed that the effects of the interaction of ego-resilience and social supports on school adjustment were different according to the children's gender and age. Second, teacher supports had influence on school life satisfaction, interest in the subject, attitude in class, and observance of school rules according to the children's gender and age. Finally, overall, the influence of school life satisfaction, interest in subjects, attitude in class, and observance of school rules was greater for girls than boys.

• The Journal of Korean Physical Therapy
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• v.29 no.3
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• pp.135-141
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• 2017

Purpose: This study was to identify the anticipatory postural adjustment (APA) mechanism which is represented by the onset time of trunk muscles and the displacement of the center of pressure (COP) according to the different base of support (BOS) during upper extremity movement. Methods: Thirty healthy subjects (14 males, 16 females) participated in this study. The movement was performed for 10 trials during each of various BOS (shoulder - width double leg stance, narrow base double leg stance, tandem stance, non-dominant single leg stance) at the 1.2 Hz frequency. Electromyography was used to measure muscle onset time and biorescue was used to measure characteristics of the displacement of COP. Surface bipolar electrodes were applied over the right deltoid anterior, right latissimus dorsi, both rectus abdominis, both internal oblique and both erector spinae. The data were analyzed by repeated one-way ANOVA and Duncan's post hoc test. Results: The study has revealed following. There were significant differences with muscle onset time in each BOS (p<0.01). There were significant differences in characteristics of the COP in each BOS (p<0.01). Conclusion: The study found that the more narrowed the basis requires the more rapid anticipatory postural control in contralateral postural muscle when the upper extremity movement is performed.

• Nutrition Research and Practice
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• v.9 no.1
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• pp.99-105
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• 2015

BACKGROUND/OBJECTIVES: Compelling evidence indicates that consumption of trans-fatty acids (TFA) is associated with a wide range of diseases. However, few validated tools for TFA intake assessment are available in Korea. We aimed to validate a food frequency questionnaire (FFQ) estimating usual intake of TFA in Korean adults. MATERIALS/METHODS: Eighty-two healthy adults completed an FFQ with a 3-day diet record (3DDR), and 58 completed a second FFQ at a 1-month interval. To assess the reproducibility of the FFQ, we compared estimated TFA intakes from each FFQ. To assess the validity, we compared estimates from the FFQ with those from the 3DDR. RESULTS: The FFQ was reproducible (Spearman r = 0.71) and provided modest correlations with the 3DDR (Spearman r = 0.38). After adjustment for total energy intake, the correlations increased (r = 0.45). Measurement-error correction also de-attenuated the correlations (r = 0.57). When quintiles of the FFQ and 3DDR were joint-classified, 9% on average were misclassified into extreme quintiles. CONCLUSIONS: Our findings suggest that the developed FFQ is reproducible and reasonably valid in categorizing individuals according to TFA intakes among healthy young and middle aged adults in Korea.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.10 no.1
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• pp.58-78
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• 2016

Compressed sensing (CS) possesses the potential benefits for spectrum sensing of wideband signal in cognitive radio. The sparsity of signal in frequency domain denotes the number of occupied channels for spectrum sensing. This paper presents a scheme of adaptively adjusting the number of compressed measurements to reduce the unnecessary computational complexity when priori information about the sparsity of signal cannot be acquired. Firstly, a method of sparsity estimation is introduced because the sparsity of signal is not available in some cognitive radio environments, and the relationship between the amount of used data and estimation accuracy is discussed. Then the SNR of the compressed signal is derived in the closed form. Based on the SNR of the compressed signal and estimated sparsity, an adaptive algorithm of adjusting the number of compressed measurements is proposed. Finally, some simulations are performed, and the results illustrate that the simulations agree with theoretical analysis, which prove the effectiveness of the proposed adaptive adjusting of compressed measurements.

• Journal of Biomedical Engineering Research
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• v.30 no.3
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• pp.247-254
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• 2009

We studied the postural response induced by plantar sole vibration with various frequencies(20, 60, 100Hz) and vibration zone(the anterior and posterior foot zone) of both soles during standing. Eight healthy young adults were exposed to 15s periods of plantar sole vibration while blindfolded. Body sway(COM, center of mass), the angle of neck, trunk, hip, knee, ankle and EMG of four lower limb muscles(tibialis anterior, lateral and medial gastrocnemial, soleus muscle) were recorded during 15s plantar sole vibration using 3D motion analysis system. Simulating each zone separately resulted in spatially oriented body tilts; oppositely directed backward and forward, respectively, the amplitude of which was proportional to the vibration frequency. EMG activity of lower limb muscles also varied according to the direction of the vibration zone and linearly according to the frequency. These findings led us to consider the plantar sole vibration as useful method of postural balance control and adjustment.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.13 no.6
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• pp.483-488
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• 2020

In recent years, the demand for wireless devices incorporating several wireless communication systems into one has been increasing in order to provide services that meet the diverse needs of consumers. Wireless devices consisting of various wireless communication systems require many frequency fixed filters. A frequency tunable filter can replace a number of frequency fixed filters in the wireless devices. If a frequency tunable filter is used in wireless systems, the system can be configured more efficiently. In this paper, a 3-pole frequency tunable BPF(bandpass filter) operating in the frequency band of 800 ~ 2400MHz is designed. In order to widen the operating frequency band, a tuning screw is designed to have a step and a linear motor is used to facilitate the adjustment of the tuning screw. The implemented frequency tunable BPF operates in the designed frequency range and has the maximum insertion loss of 2.82dB in the channel band and the minimum attenuation of 18.7dB at ± 50MHz frequency offset from the center frequency of the band.

• Korean Journal of Clinical Laboratory Science
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• v.38 no.2
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• pp.141-146
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• 2006

Vagal nerve stimulation (VNS) has been proposed as a possible way to improve the control of refractory epilepsy. We report the effects following VNS treatment in patients with refractory epilepsy. Seventeen patients with a mean age of 12.8 years, ranging from 5 to 29 years, underwent the implantation of vagal nerve stimulation (Cyberonics, Houston, TX). We reviewed the clinical findings before and after VNS in seizure frequency, number of antiepileptic drugs (AED), and quality of life (QOL). All of the patients had intractable seizures, eleven of the patients had additional medical complications, three had hippocampus atrophy, one had encephalomalacia, five had encephalitis, one had pachygyria, and one had schizencephaly. Thirteen patients had symptomatic partial epilepsies, three patients had Lennox-Gastaut syndrome and one had cryptogenic partial epilepsy. The mean follow up duration was 35 months. The mean reduction of seizure frequency compared with baseline before VNS was 26.1% after 3 months (p<0.005), 41.9% after 6 months (p<0.001), 46.9% after 1 year (p<0.001), and 53% at the latest follow-up (p<0.001). Twelve patients showed an improvement of QOL such as mood, language, alertness, expression, and motor function. The most common side effects were transient hoarseness or voice change or cough, which was detected in six patients (35%) and wound infection in one patient (5%). This study has shown a good anti-seizure effect of VNS, decrease in seizure frequency and improvements in QOL. We concluded that VNS is a beneficial therapy in refractory epilepsy with a non-resectable epileptic focus. Further studies should be focused on the prediction of unresponsiveness and the adjustment of VNS parameters for maximum efficacy in patients with various medical histories.

• Journal of Families and Better Life
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• v.30 no.1
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• pp.65-76
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• 2012

The purpose of this study was to investigate effects of maladaptive personality (borderline personality, narcissistic personality, and dependent personality) and conflict behavior on marital adjustment(dyadic satisfaction, dyadic consensus, dyadic cohesion, and affectional expression) among married women. Subjects in this study were 725 married women who lived in Cheong-buk, in Gyeonggi province, Korea. Data were analyzed by the methods of frequency, percentage, Cronbach's ${\alpha}$, and factor analysis, Pearson's correlation, and hierarchical regression using SPSS-WIN version 12.0. The results of this study were as follows: 1) the less borderline personality was perceived, the more narcissistic personality was perceived, In addition, a greater perceived amount of destructive conflict behavior of wives was linked to highdyadic satisfaction in the wives'. Wives' destructive conflict- behavior was the most important parameter to predict dyadic satisfaction. 2) The less borderline personality was perceived, the less dependent personality was perceived, while the more narcissistic personality was perceived, the more destructive conflict behavior of husbands was perceived, with the, wives' incidence of dyadic consensus appearing high. Husbands' destructive conflict behavior was the most important parameter to predict a dyadic consensus. 3) The less borderline personality was perceived, the more narcissistic personality was perceived, In addition, more destructive conflict behavior of the husbands was linked to highdyadic cohesion in the wives'. Husbands' destructive conflict behavior was the most important to predict dyadic cohesion relatively. 4) The more destructive conflict behavior of wives was perceived, the higher the wives' affectional expression appeared. The wives' destructive conflict behavior was the most important parameter to predict affectional expression.